One month after the middleweight belt is on the line at UFC 175, two of the best in the 185-pound division will be featured again in Los Angeles.

In a battle of former Strikeforce champions, No. 4 Ronaldo “Jacare” Souza will take on No. 7 Gegard Mousasi in the co-main event at UFC 176 at Staples Center on Aug. 2, a UFC source confirmed.

Featherweight champion Jose Aldo will face Chad Mendes in the main event at UFC 176, for which tickets went on sale Friday.

Outside of middleweight champion Chris Weidman, who defends the strap against Lyoto Machida next month, the hottest fighter in the division could be Souza (20-3, 1 NC).

The 34-year-old Brazilian has won his past six fights — with five finishes ­— and is 3-0 in the UFC. The former Strikeforce middleweight champion’s last fight was a unanimous-decision victory over Francis Carmont at UFC Fight Night 36 in February.

Mousasi (35-4-2) fought less than three weeks ago when he became the first to submit Mark Munoz, swarming his opponent and forcing him to tap out to a rear-naked choke at 3:57 of the first round at UFC Fight Night 41.

Mousasi, 28, is 2-1 in the UFC, with his lone loss coming in a tough unanimous-decision loss to Machida at UFC Fight Night 36 that was awarded Fight of the Night. It was the first UFC fight at 185 pounds for the former Strikeforce light heavyweight champion, who also held the middleweight and light heavyweight titles in Dream.

The fight will be a rematch of their title bout at Dream 6 in 2008, when Mousasi defeated Souza by first-round TKO in the middleweight grand prix finale.